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Finding the Fourth Proportional to 302,587.80, 453,881.70 and 255,931.80

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Solution

The fourth proportional to 302,587.80, 453,881.70 and 255,931.80 is: 383,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,587.80 : 453,881.70 = 255,931.80 : x
  2. Step 2: Convert to fraction form
    302,587.80/453,881.70 = 255,931.80/x
  3. Step 3: Cross multiply
    302,587.80x = 453,881.70 × 255,931.80
  4. Step 4: Simplify right side
    302,587.80x = 116,162,760,468.06
  5. Step 5: Solve for x
    x = 116,162,760,468.06/302,587.80
  6. Step 6: Final answer
    x = 383,897.70

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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.