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Finding the Fourth Proportional to 328,980.60, 493,665.30 and 240,010.20

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Solution

The fourth proportional to 328,980.60, 493,665.30 and 240,010.20 is: 360,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,980.60 : 493,665.30 = 240,010.20 : x
  2. Step 2: Convert to fraction form
    328,980.60/493,665.30 = 240,010.20/x
  3. Step 3: Cross multiply
    328,980.60x = 493,665.30 × 240,010.20
  4. Step 4: Simplify right side
    328,980.60x = 118,484,707,386.06
  5. Step 5: Solve for x
    x = 118,484,707,386.06/328,980.60
  6. Step 6: Final answer
    x = 360,157.13

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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.