Home / 377,681.13-521,168.18-216,499.23

Finding the Fourth Proportional to 377,681.13, 521,168.18 and 216,499.23

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Solution

The fourth proportional to 377,681.13, 521,168.18 and 216,499.23 is: 298,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,681.13 : 521,168.18 = 216,499.23 : x
  2. Step 2: Convert to fraction form
    377,681.13/521,168.18 = 216,499.23/x
  3. Step 3: Cross multiply
    377,681.13x = 521,168.18 × 216,499.23
  4. Step 4: Simplify right side
    377,681.13x = 112,832,508,588.01
  5. Step 5: Solve for x
    x = 112,832,508,588.01/377,681.13
  6. Step 6: Final answer
    x = 298,750.72

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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.