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Finding the Fourth Proportional to 377,272.08, 520,645.32 and 207,510.66

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Solution

The fourth proportional to 377,272.08, 520,645.32 and 207,510.66 is: 286,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,272.08 : 520,645.32 = 207,510.66 : x
  2. Step 2: Convert to fraction form
    377,272.08/520,645.32 = 207,510.66/x
  3. Step 3: Cross multiply
    377,272.08x = 520,645.32 × 207,510.66
  4. Step 4: Simplify right side
    377,272.08x = 108,039,453,979.11
  5. Step 5: Solve for x
    x = 108,039,453,979.11/377,272.08
  6. Step 6: Final answer
    x = 286,370.13

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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.