Home / 387,926.71-535,330.45-224,590.10

Finding the Fourth Proportional to 387,926.71, 535,330.45 and 224,590.10

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Solution

The fourth proportional to 387,926.71, 535,330.45 and 224,590.10 is: 309,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,926.71 : 535,330.45 = 224,590.10 : x
  2. Step 2: Convert to fraction form
    387,926.71/535,330.45 = 224,590.10/x
  3. Step 3: Cross multiply
    387,926.71x = 535,330.45 × 224,590.10
  4. Step 4: Simplify right side
    387,926.71x = 120,229,916,060.42
  5. Step 5: Solve for x
    x = 120,229,916,060.42/387,926.71
  6. Step 6: Final answer
    x = 309,929.46

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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.