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Finding the Fourth Proportional to 377,203.72, 520,530.75 and 207,437.85

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Solution

The fourth proportional to 377,203.72, 520,530.75 and 207,437.85 is: 286,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,203.72 : 520,530.75 = 207,437.85 : x
  2. Step 2: Convert to fraction form
    377,203.72/520,530.75 = 207,437.85/x
  3. Step 3: Cross multiply
    377,203.72x = 520,530.75 × 207,437.85
  4. Step 4: Simplify right side
    377,203.72x = 107,977,779,638.89
  5. Step 5: Solve for x
    x = 107,977,779,638.89/377,203.72
  6. Step 6: Final answer
    x = 286,258.52

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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.