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Finding the Fourth Proportional to 418,033.95, 577,125.86 and 275,209.18

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Solution

The fourth proportional to 418,033.95, 577,125.86 and 275,209.18 is: 379,946.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,033.95 : 577,125.86 = 275,209.18 : x
  2. Step 2: Convert to fraction form
    418,033.95/577,125.86 = 275,209.18/x
  3. Step 3: Cross multiply
    418,033.95x = 577,125.86 × 275,209.18
  4. Step 4: Simplify right side
    418,033.95x = 158,830,333,416.59
  5. Step 5: Solve for x
    x = 158,830,333,416.59/418,033.95
  6. Step 6: Final answer
    x = 379,946.02

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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.