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Finding the Fourth Proportional to 235,547.80, 325,046.60 and 128,117.68

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Solution

The fourth proportional to 235,547.80, 325,046.60 and 128,117.68 is: 176,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,547.80 : 325,046.60 = 128,117.68 : x
  2. Step 2: Convert to fraction form
    235,547.80/325,046.60 = 128,117.68/x
  3. Step 3: Cross multiply
    235,547.80x = 325,046.60 × 128,117.68
  4. Step 4: Simplify right side
    235,547.80x = 41,644,216,283.89
  5. Step 5: Solve for x
    x = 41,644,216,283.89/235,547.80
  6. Step 6: Final answer
    x = 176,797.31

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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.