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Finding the Fourth Proportional to 369,617.67, 554,426.55 and 129,919.74

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Solution

The fourth proportional to 369,617.67, 554,426.55 and 129,919.74 is: 194,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,617.67 : 554,426.55 = 129,919.74 : x
  2. Step 2: Convert to fraction form
    369,617.67/554,426.55 = 129,919.74/x
  3. Step 3: Cross multiply
    369,617.67x = 554,426.55 × 129,919.74
  4. Step 4: Simplify right side
    369,617.67x = 72,030,953,225.10
  5. Step 5: Solve for x
    x = 72,030,953,225.10/369,617.67
  6. Step 6: Final answer
    x = 194,879.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.