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Finding the Fourth Proportional to 493,602.30, 740,230.65 and 256,866.30

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Solution

The fourth proportional to 493,602.30, 740,230.65 and 256,866.30 is: 385,209.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,602.30 : 740,230.65 = 256,866.30 : x
  2. Step 2: Convert to fraction form
    493,602.30/740,230.65 = 256,866.30/x
  3. Step 3: Cross multiply
    493,602.30x = 740,230.65 × 256,866.30
  4. Step 4: Simplify right side
    493,602.30x = 190,140,308,212.10
  5. Step 5: Solve for x
    x = 190,140,308,212.10/493,602.30
  6. Step 6: Final answer
    x = 385,209.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.