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Finding the Fourth Proportional to 423,501.68, 635,117.64 and 139,126.22

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Solution

The fourth proportional to 423,501.68, 635,117.64 and 139,126.22 is: 208,645.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,501.68 : 635,117.64 = 139,126.22 : x
  2. Step 2: Convert to fraction form
    423,501.68/635,117.64 = 139,126.22/x
  3. Step 3: Cross multiply
    423,501.68x = 635,117.64 × 139,126.22
  4. Step 4: Simplify right side
    423,501.68x = 88,361,513,332.93
  5. Step 5: Solve for x
    x = 88,361,513,332.93/423,501.68
  6. Step 6: Final answer
    x = 208,645.02

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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.