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Finding the Fourth Proportional to 238,079.86, 328,559.68 and 130,653.74

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Solution

The fourth proportional to 238,079.86, 328,559.68 and 130,653.74 is: 180,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,079.86 : 328,559.68 = 130,653.74 : x
  2. Step 2: Convert to fraction form
    238,079.86/328,559.68 = 130,653.74/x
  3. Step 3: Cross multiply
    238,079.86x = 328,559.68 × 130,653.74
  4. Step 4: Simplify right side
    238,079.86x = 42,927,549,362.40
  5. Step 5: Solve for x
    x = 42,927,549,362.40/238,079.86
  6. Step 6: Final answer
    x = 180,307.36

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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.