Home / 316,382.90-436,812.18-282,332.84

Finding the Fourth Proportional to 316,382.90, 436,812.18 and 282,332.84

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Solution

The fourth proportional to 316,382.90, 436,812.18 and 282,332.84 is: 389,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,382.90 : 436,812.18 = 282,332.84 : x
  2. Step 2: Convert to fraction form
    316,382.90/436,812.18 = 282,332.84/x
  3. Step 3: Cross multiply
    316,382.90x = 436,812.18 × 282,332.84
  4. Step 4: Simplify right side
    316,382.90x = 123,326,423,325.99
  5. Step 5: Solve for x
    x = 123,326,423,325.99/316,382.90
  6. Step 6: Final answer
    x = 389,801.17

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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.