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Finding the Fourth Proportional to 249,472.64, 344,636.52 and 215,880.32

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Solution

The fourth proportional to 249,472.64, 344,636.52 and 215,880.32 is: 298,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,472.64 : 344,636.52 = 215,880.32 : x
  2. Step 2: Convert to fraction form
    249,472.64/344,636.52 = 215,880.32/x
  3. Step 3: Cross multiply
    249,472.64x = 344,636.52 × 215,880.32
  4. Step 4: Simplify right side
    249,472.64x = 74,400,242,221.29
  5. Step 5: Solve for x
    x = 74,400,242,221.29/249,472.64
  6. Step 6: Final answer
    x = 298,230.07

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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.