Home / 238,035.90-328,478.55-130,603.26

Finding the Fourth Proportional to 238,035.90, 328,478.55 and 130,603.26

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Solution

The fourth proportional to 238,035.90, 328,478.55 and 130,603.26 is: 180,226.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,035.90 : 328,478.55 = 130,603.26 : x
  2. Step 2: Convert to fraction form
    238,035.90/328,478.55 = 130,603.26/x
  3. Step 3: Cross multiply
    238,035.90x = 328,478.55 × 130,603.26
  4. Step 4: Simplify right side
    238,035.90x = 42,900,369,470.07
  5. Step 5: Solve for x
    x = 42,900,369,470.07/238,035.90
  6. Step 6: Final answer
    x = 180,226.47

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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.