Home / 369,981.22-554,747.10-145,072.20

Finding the Fourth Proportional to 369,981.22, 554,747.10 and 145,072.20

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Solution

The fourth proportional to 369,981.22, 554,747.10 and 145,072.20 is: 217,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,981.22 : 554,747.10 = 145,072.20 : x
  2. Step 2: Convert to fraction form
    369,981.22/554,747.10 = 145,072.20/x
  3. Step 3: Cross multiply
    369,981.22x = 554,747.10 × 145,072.20
  4. Step 4: Simplify right side
    369,981.22x = 80,478,381,216.43
  5. Step 5: Solve for x
    x = 80,478,381,216.43/369,981.22
  6. Step 6: Final answer
    x = 217,520.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.