Home / 238,143.79-328,637.27-130,715.65

Finding the Fourth Proportional to 238,143.79, 328,637.27 and 130,715.65

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Solution

The fourth proportional to 238,143.79, 328,637.27 and 130,715.65 is: 180,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,143.79 : 328,637.27 = 130,715.65 : x
  2. Step 2: Convert to fraction form
    238,143.79/328,637.27 = 130,715.65/x
  3. Step 3: Cross multiply
    238,143.79x = 328,637.27 × 130,715.65
  4. Step 4: Simplify right side
    238,143.79x = 42,958,033,867.47
  5. Step 5: Solve for x
    x = 42,958,033,867.47/238,143.79
  6. Step 6: Final answer
    x = 180,386.96

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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.