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Finding the Fourth Proportional to 385,597.68, 532,145.16 and 242,304.72

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Solution

The fourth proportional to 385,597.68, 532,145.16 and 242,304.72 is: 334,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,597.68 : 532,145.16 = 242,304.72 : x
  2. Step 2: Convert to fraction form
    385,597.68/532,145.16 = 242,304.72/x
  3. Step 3: Cross multiply
    385,597.68x = 532,145.16 × 242,304.72
  4. Step 4: Simplify right side
    385,597.68x = 128,941,283,993.16
  5. Step 5: Solve for x
    x = 128,941,283,993.16/385,597.68
  6. Step 6: Final answer
    x = 334,393.31

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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.