Home / 280,210.86-386,702.10-159,363.18

Finding the Fourth Proportional to 280,210.86, 386,702.10 and 159,363.18

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Solution

The fourth proportional to 280,210.86, 386,702.10 and 159,363.18 is: 219,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,210.86 : 386,702.10 = 159,363.18 : x
  2. Step 2: Convert to fraction form
    280,210.86/386,702.10 = 159,363.18/x
  3. Step 3: Cross multiply
    280,210.86x = 386,702.10 × 159,363.18
  4. Step 4: Simplify right side
    280,210.86x = 61,626,076,368.68
  5. Step 5: Solve for x
    x = 61,626,076,368.68/280,210.86
  6. Step 6: Final answer
    x = 219,927.51

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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.