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Finding the Fourth Proportional to 365,565.35, 503,358.68 and 319,988.27

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Solution

The fourth proportional to 365,565.35, 503,358.68 and 319,988.27 is: 440,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,565.35 : 503,358.68 = 319,988.27 : x
  2. Step 2: Convert to fraction form
    365,565.35/503,358.68 = 319,988.27/x
  3. Step 3: Cross multiply
    365,565.35x = 503,358.68 × 319,988.27
  4. Step 4: Simplify right side
    365,565.35x = 161,068,869,085.95
  5. Step 5: Solve for x
    x = 161,068,869,085.95/365,565.35
  6. Step 6: Final answer
    x = 440,602.13

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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.