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Finding the Fourth Proportional to 553,614.10, 830,421.15 and 179,637.10

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Solution

The fourth proportional to 553,614.10, 830,421.15 and 179,637.10 is: 269,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,614.10 : 830,421.15 = 179,637.10 : x
  2. Step 2: Convert to fraction form
    553,614.10/830,421.15 = 179,637.10/x
  3. Step 3: Cross multiply
    553,614.10x = 830,421.15 × 179,637.10
  4. Step 4: Simplify right side
    553,614.10x = 149,174,447,164.67
  5. Step 5: Solve for x
    x = 149,174,447,164.67/553,614.10
  6. Step 6: Final answer
    x = 269,455.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.