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Finding the Fourth Proportional to 354,368.08, 489,024.84 and 203,466.16

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Solution

The fourth proportional to 354,368.08, 489,024.84 and 203,466.16 is: 280,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,368.08 : 489,024.84 = 203,466.16 : x
  2. Step 2: Convert to fraction form
    354,368.08/489,024.84 = 203,466.16/x
  3. Step 3: Cross multiply
    354,368.08x = 489,024.84 × 203,466.16
  4. Step 4: Simplify right side
    354,368.08x = 99,500,006,339.41
  5. Step 5: Solve for x
    x = 99,500,006,339.41/354,368.08
  6. Step 6: Final answer
    x = 280,781.51

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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.