Home / 328,200.90-492,301.35-210,005.70

Finding the Fourth Proportional to 328,200.90, 492,301.35 and 210,005.70

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Solution

The fourth proportional to 328,200.90, 492,301.35 and 210,005.70 is: 315,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,200.90 : 492,301.35 = 210,005.70 : x
  2. Step 2: Convert to fraction form
    328,200.90/492,301.35 = 210,005.70/x
  3. Step 3: Cross multiply
    328,200.90x = 492,301.35 × 210,005.70
  4. Step 4: Simplify right side
    328,200.90x = 103,386,089,617.70
  5. Step 5: Solve for x
    x = 103,386,089,617.70/328,200.90
  6. Step 6: Final answer
    x = 315,008.55

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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.