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Finding the Fourth Proportional to 329,737.32, 455,055.12 and 208,834.20

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Solution

The fourth proportional to 329,737.32, 455,055.12 and 208,834.20 is: 288,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,737.32 : 455,055.12 = 208,834.20 : x
  2. Step 2: Convert to fraction form
    329,737.32/455,055.12 = 208,834.20/x
  3. Step 3: Cross multiply
    329,737.32x = 455,055.12 × 208,834.20
  4. Step 4: Simplify right side
    329,737.32x = 95,031,071,941.10
  5. Step 5: Solve for x
    x = 95,031,071,941.10/329,737.32
  6. Step 6: Final answer
    x = 288,202.35

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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.