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Finding the Fourth Proportional to 377,200.80, 520,526.72 and 207,434.92

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Solution

The fourth proportional to 377,200.80, 520,526.72 and 207,434.92 is: 286,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,200.80 : 520,526.72 = 207,434.92 : x
  2. Step 2: Convert to fraction form
    377,200.80/520,526.72 = 207,434.92/x
  3. Step 3: Cross multiply
    377,200.80x = 520,526.72 × 207,434.92
  4. Step 4: Simplify right side
    377,200.80x = 107,975,417,483.89
  5. Step 5: Solve for x
    x = 107,975,417,483.89/377,200.80
  6. Step 6: Final answer
    x = 286,254.48

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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.