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Finding the Fourth Proportional to 535,210.79, 802,616.16 and 215,254.67

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Solution

The fourth proportional to 535,210.79, 802,616.16 and 215,254.67 is: 322,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,210.79 : 802,616.16 = 215,254.67 : x
  2. Step 2: Convert to fraction form
    535,210.79/802,616.16 = 215,254.67/x
  3. Step 3: Cross multiply
    535,210.79x = 802,616.16 × 215,254.67
  4. Step 4: Simplify right side
    535,210.79x = 172,766,873,451.59
  5. Step 5: Solve for x
    x = 172,766,873,451.59/535,210.79
  6. Step 6: Final answer
    x = 322,801.55

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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.