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Finding the Fourth Proportional to 315,303.86, 435,133.50 and 177,530.23

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Solution

The fourth proportional to 315,303.86, 435,133.50 and 177,530.23 is: 244,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,303.86 : 435,133.50 = 177,530.23 : x
  2. Step 2: Convert to fraction form
    315,303.86/435,133.50 = 177,530.23/x
  3. Step 3: Cross multiply
    315,303.86x = 435,133.50 × 177,530.23
  4. Step 4: Simplify right side
    315,303.86x = 77,249,348,160.04
  5. Step 5: Solve for x
    x = 77,249,348,160.04/315,303.86
  6. Step 6: Final answer
    x = 244,999.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.