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Finding the Fourth Proportional to 292,085.40, 409,510.05 and 292,085.40

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Solution

The fourth proportional to 292,085.40, 409,510.05 and 292,085.40 is: 409,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,085.40 : 409,510.05 = 292,085.40 : x
  2. Step 2: Convert to fraction form
    292,085.40/409,510.05 = 292,085.40/x
  3. Step 3: Cross multiply
    292,085.40x = 409,510.05 × 292,085.40
  4. Step 4: Simplify right side
    292,085.40x = 119,611,906,758.27
  5. Step 5: Solve for x
    x = 119,611,906,758.27/292,085.40
  6. Step 6: Final answer
    x = 409,510.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.