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Finding the Fourth Proportional to 356,909.29, 492,533.50 and 220,916.16

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Solution

The fourth proportional to 356,909.29, 492,533.50 and 220,916.16 is: 304,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,909.29 : 492,533.50 = 220,916.16 : x
  2. Step 2: Convert to fraction form
    356,909.29/492,533.50 = 220,916.16/x
  3. Step 3: Cross multiply
    356,909.29x = 492,533.50 × 220,916.16
  4. Step 4: Simplify right side
    356,909.29x = 108,808,609,491.36
  5. Step 5: Solve for x
    x = 108,808,609,491.36/356,909.29
  6. Step 6: Final answer
    x = 304,863.48

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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.