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Finding the Fourth Proportional to 418,737.42, 577,950.64 and 255,430.01

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Solution

The fourth proportional to 418,737.42, 577,950.64 and 255,430.01 is: 352,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,737.42 : 577,950.64 = 255,430.01 : x
  2. Step 2: Convert to fraction form
    418,737.42/577,950.64 = 255,430.01/x
  3. Step 3: Cross multiply
    418,737.42x = 577,950.64 × 255,430.01
  4. Step 4: Simplify right side
    418,737.42x = 147,625,938,561.01
  5. Step 5: Solve for x
    x = 147,625,938,561.01/418,737.42
  6. Step 6: Final answer
    x = 352,550.15

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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.