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Finding the Fourth Proportional to 535,602.61, 803,400.15 and 136,239.84

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Solution

The fourth proportional to 535,602.61, 803,400.15 and 136,239.84 is: 204,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,602.61 : 803,400.15 = 136,239.84 : x
  2. Step 2: Convert to fraction form
    535,602.61/803,400.15 = 136,239.84/x
  3. Step 3: Cross multiply
    535,602.61x = 803,400.15 × 136,239.84
  4. Step 4: Simplify right side
    535,602.61x = 109,455,108,402.88
  5. Step 5: Solve for x
    x = 109,455,108,402.88/535,602.61
  6. Step 6: Final answer
    x = 204,358.80

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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.