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Finding the Fourth Proportional to 310,886.64, 429,033.24 and 176,759.28

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Solution

The fourth proportional to 310,886.64, 429,033.24 and 176,759.28 is: 243,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,886.64 : 429,033.24 = 176,759.28 : x
  2. Step 2: Convert to fraction form
    310,886.64/429,033.24 = 176,759.28/x
  3. Step 3: Cross multiply
    310,886.64x = 429,033.24 × 176,759.28
  4. Step 4: Simplify right side
    310,886.64x = 75,835,606,598.47
  5. Step 5: Solve for x
    x = 75,835,606,598.47/310,886.64
  6. Step 6: Final answer
    x = 243,933.31

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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.