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Finding the Fourth Proportional to 253,397.89, 380,588.91 and 186,574.11

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Solution

The fourth proportional to 253,397.89, 380,588.91 and 186,574.11 is: 280,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,397.89 : 380,588.91 = 186,574.11 : x
  2. Step 2: Convert to fraction form
    253,397.89/380,588.91 = 186,574.11/x
  3. Step 3: Cross multiply
    253,397.89x = 380,588.91 × 186,574.11
  4. Step 4: Simplify right side
    253,397.89x = 71,008,037,159.12
  5. Step 5: Solve for x
    x = 71,008,037,159.12/253,397.89
  6. Step 6: Final answer
    x = 280,223.47

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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.