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Finding the Fourth Proportional to 385,983.42, 532,503.87 and 240,703.74

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Solution

The fourth proportional to 385,983.42, 532,503.87 and 240,703.74 is: 332,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,983.42 : 532,503.87 = 240,703.74 : x
  2. Step 2: Convert to fraction form
    385,983.42/532,503.87 = 240,703.74/x
  3. Step 3: Cross multiply
    385,983.42x = 532,503.87 × 240,703.74
  4. Step 4: Simplify right side
    385,983.42x = 128,175,673,073.47
  5. Step 5: Solve for x
    x = 128,175,673,073.47/385,983.42
  6. Step 6: Final answer
    x = 332,075.59

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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.