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Finding the Fourth Proportional to 399,998.48, 552,136.80 and 230,300.24

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Solution

The fourth proportional to 399,998.48, 552,136.80 and 230,300.24 is: 317,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,998.48 : 552,136.80 = 230,300.24 : x
  2. Step 2: Convert to fraction form
    399,998.48/552,136.80 = 230,300.24/x
  3. Step 3: Cross multiply
    399,998.48x = 552,136.80 × 230,300.24
  4. Step 4: Simplify right side
    399,998.48x = 127,157,237,552.83
  5. Step 5: Solve for x
    x = 127,157,237,552.83/399,998.48
  6. Step 6: Final answer
    x = 317,894.30

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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.