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Finding the Fourth Proportional to 369,000.72, 509,220.98 and 207,855.76

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Solution

The fourth proportional to 369,000.72, 509,220.98 and 207,855.76 is: 286,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,000.72 : 509,220.98 = 207,855.76 : x
  2. Step 2: Convert to fraction form
    369,000.72/509,220.98 = 207,855.76/x
  3. Step 3: Cross multiply
    369,000.72x = 509,220.98 × 207,855.76
  4. Step 4: Simplify right side
    369,000.72x = 105,844,513,805.85
  5. Step 5: Solve for x
    x = 105,844,513,805.85/369,000.72
  6. Step 6: Final answer
    x = 286,840.94

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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.