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Finding the Fourth Proportional to 310,955.68, 429,151.44 and 183,643.12

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Solution

The fourth proportional to 310,955.68, 429,151.44 and 183,643.12 is: 253,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,955.68 : 429,151.44 = 183,643.12 : x
  2. Step 2: Convert to fraction form
    310,955.68/429,151.44 = 183,643.12/x
  3. Step 3: Cross multiply
    310,955.68x = 429,151.44 × 183,643.12
  4. Step 4: Simplify right side
    310,955.68x = 78,810,709,394.09
  5. Step 5: Solve for x
    x = 78,810,709,394.09/310,955.68
  6. Step 6: Final answer
    x = 253,446.76

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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.