Home / 418,981.61-578,207.69-237,701.18

Finding the Fourth Proportional to 418,981.61, 578,207.69 and 237,701.18

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Solution

The fourth proportional to 418,981.61, 578,207.69 and 237,701.18 is: 328,035.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,981.61 : 578,207.69 = 237,701.18 : x
  2. Step 2: Convert to fraction form
    418,981.61/578,207.69 = 237,701.18/x
  3. Step 3: Cross multiply
    418,981.61x = 578,207.69 × 237,701.18
  4. Step 4: Simplify right side
    418,981.61x = 137,440,650,198.07
  5. Step 5: Solve for x
    x = 137,440,650,198.07/418,981.61
  6. Step 6: Final answer
    x = 328,035.04

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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.