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Finding the Fourth Proportional to 377,417.16, 520,272.18 and 249,871.32

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Solution

The fourth proportional to 377,417.16, 520,272.18 and 249,871.32 is: 344,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,417.16 : 520,272.18 = 249,871.32 : x
  2. Step 2: Convert to fraction form
    377,417.16/520,272.18 = 249,871.32/x
  3. Step 3: Cross multiply
    377,417.16x = 520,272.18 × 249,871.32
  4. Step 4: Simplify right side
    377,417.16x = 130,001,096,375.88
  5. Step 5: Solve for x
    x = 130,001,096,375.88/377,417.16
  6. Step 6: Final answer
    x = 344,449.35

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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.