Home / 249,905.57-344,878.29-136,728.32

Finding the Fourth Proportional to 249,905.57, 344,878.29 and 136,728.32

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Solution

The fourth proportional to 249,905.57, 344,878.29 and 136,728.32 is: 188,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,905.57 : 344,878.29 = 136,728.32 : x
  2. Step 2: Convert to fraction form
    249,905.57/344,878.29 = 136,728.32/x
  3. Step 3: Cross multiply
    249,905.57x = 344,878.29 × 136,728.32
  4. Step 4: Simplify right side
    249,905.57x = 47,154,629,196.17
  5. Step 5: Solve for x
    x = 47,154,629,196.17/249,905.57
  6. Step 6: Final answer
    x = 188,689.79

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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.