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Finding the Fourth Proportional to 377,307.72, 520,676.10 and 207,538.20

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Solution

The fourth proportional to 377,307.72, 520,676.10 and 207,538.20 is: 286,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,307.72 : 520,676.10 = 207,538.20 : x
  2. Step 2: Convert to fraction form
    377,307.72/520,676.10 = 207,538.20/x
  3. Step 3: Cross multiply
    377,307.72x = 520,676.10 × 207,538.20
  4. Step 4: Simplify right side
    377,307.72x = 108,060,180,577.02
  5. Step 5: Solve for x
    x = 108,060,180,577.02/377,307.72
  6. Step 6: Final answer
    x = 286,398.01

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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.