Home / 387,225.83-534,222.29-285,493.14

Finding the Fourth Proportional to 387,225.83, 534,222.29 and 285,493.14

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Solution

The fourth proportional to 387,225.83, 534,222.29 and 285,493.14 is: 393,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,225.83 : 534,222.29 = 285,493.14 : x
  2. Step 2: Convert to fraction form
    387,225.83/534,222.29 = 285,493.14/x
  3. Step 3: Cross multiply
    387,225.83x = 534,222.29 × 285,493.14
  4. Step 4: Simplify right side
    387,225.83x = 152,516,799,743.82
  5. Step 5: Solve for x
    x = 152,516,799,743.82/387,225.83
  6. Step 6: Final answer
    x = 393,870.42

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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.