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Finding the Fourth Proportional to 460,085.72, 634,905.91 and 256,136.65

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Solution

The fourth proportional to 460,085.72, 634,905.91 and 256,136.65 is: 353,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,085.72 : 634,905.91 = 256,136.65 : x
  2. Step 2: Convert to fraction form
    460,085.72/634,905.91 = 256,136.65/x
  3. Step 3: Cross multiply
    460,085.72x = 634,905.91 × 256,136.65
  4. Step 4: Simplify right side
    460,085.72x = 162,622,668,397.39
  5. Step 5: Solve for x
    x = 162,622,668,397.39/460,085.72
  6. Step 6: Final answer
    x = 353,461.68

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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.