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Finding the Fourth Proportional to 369,587.55, 510,031.56 and 199,821.68

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Solution

The fourth proportional to 369,587.55, 510,031.56 and 199,821.68 is: 275,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,587.55 : 510,031.56 = 199,821.68 : x
  2. Step 2: Convert to fraction form
    369,587.55/510,031.56 = 199,821.68/x
  3. Step 3: Cross multiply
    369,587.55x = 510,031.56 × 199,821.68
  4. Step 4: Simplify right side
    369,587.55x = 101,915,363,172.22
  5. Step 5: Solve for x
    x = 101,915,363,172.22/369,587.55
  6. Step 6: Final answer
    x = 275,754.32

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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.