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Finding the Fourth Proportional to 354,549.08, 489,281.24 and 193,407.48

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Solution

The fourth proportional to 354,549.08, 489,281.24 and 193,407.48 is: 266,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,549.08 : 489,281.24 = 193,407.48 : x
  2. Step 2: Convert to fraction form
    354,549.08/489,281.24 = 193,407.48/x
  3. Step 3: Cross multiply
    354,549.08x = 489,281.24 × 193,407.48
  4. Step 4: Simplify right side
    354,549.08x = 94,630,652,123.19
  5. Step 5: Solve for x
    x = 94,630,652,123.19/354,549.08
  6. Step 6: Final answer
    x = 266,904.24

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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.