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Finding the Fourth Proportional to 249,580.64, 344,420.70 and 136,404.20

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Solution

The fourth proportional to 249,580.64, 344,420.70 and 136,404.20 is: 188,237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,580.64 : 344,420.70 = 136,404.20 : x
  2. Step 2: Convert to fraction form
    249,580.64/344,420.70 = 136,404.20/x
  3. Step 3: Cross multiply
    249,580.64x = 344,420.70 × 136,404.20
  4. Step 4: Simplify right side
    249,580.64x = 46,980,430,046.94
  5. Step 5: Solve for x
    x = 46,980,430,046.94/249,580.64
  6. Step 6: Final answer
    x = 188,237.48

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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.