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Finding the Fourth Proportional to 238,040.40, 328,484.76 and 130,607.76

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Solution

The fourth proportional to 238,040.40, 328,484.76 and 130,607.76 is: 180,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,040.40 : 328,484.76 = 130,607.76 : x
  2. Step 2: Convert to fraction form
    238,040.40/328,484.76 = 130,607.76/x
  3. Step 3: Cross multiply
    238,040.40x = 328,484.76 × 130,607.76
  4. Step 4: Simplify right side
    238,040.40x = 42,902,658,697.74
  5. Step 5: Solve for x
    x = 42,902,658,697.74/238,040.40
  6. Step 6: Final answer
    x = 180,232.68

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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.