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Finding the Fourth Proportional to 245,484.27, 338,814.87 and 153,646.20

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Solution

The fourth proportional to 245,484.27, 338,814.87 and 153,646.20 is: 212,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,484.27 : 338,814.87 = 153,646.20 : x
  2. Step 2: Convert to fraction form
    245,484.27/338,814.87 = 153,646.20/x
  3. Step 3: Cross multiply
    245,484.27x = 338,814.87 × 153,646.20
  4. Step 4: Simplify right side
    245,484.27x = 52,057,617,278.99
  5. Step 5: Solve for x
    x = 52,057,617,278.99/245,484.27
  6. Step 6: Final answer
    x = 212,060.91

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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.