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Finding the Fourth Proportional to 249,470.64, 344,633.76 and 215,878.32

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Solution

The fourth proportional to 249,470.64, 344,633.76 and 215,878.32 is: 298,227.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,470.64 : 344,633.76 = 215,878.32 : x
  2. Step 2: Convert to fraction form
    249,470.64/344,633.76 = 215,878.32/x
  3. Step 3: Cross multiply
    249,470.64x = 344,633.76 × 215,878.32
  4. Step 4: Simplify right side
    249,470.64x = 74,398,957,124.08
  5. Step 5: Solve for x
    x = 74,398,957,124.08/249,470.64
  6. Step 6: Final answer
    x = 298,227.31

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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.