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Finding the Fourth Proportional to 302,702.20, 453,946.95 and 89,413.20

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Solution

The fourth proportional to 302,702.20, 453,946.95 and 89,413.20 is: 134,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,702.20 : 453,946.95 = 89,413.20 : x
  2. Step 2: Convert to fraction form
    302,702.20/453,946.95 = 89,413.20/x
  3. Step 3: Cross multiply
    302,702.20x = 453,946.95 × 89,413.20
  4. Step 4: Simplify right side
    302,702.20x = 40,588,849,429.74
  5. Step 5: Solve for x
    x = 40,588,849,429.74/302,702.20
  6. Step 6: Final answer
    x = 134,088.39

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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.