Home / 328,204.90-492,307.35-210,009.70

Finding the Fourth Proportional to 328,204.90, 492,307.35 and 210,009.70

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Solution

The fourth proportional to 328,204.90, 492,307.35 and 210,009.70 is: 315,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,204.90 : 492,307.35 = 210,009.70 : x
  2. Step 2: Convert to fraction form
    328,204.90/492,307.35 = 210,009.70/x
  3. Step 3: Cross multiply
    328,204.90x = 492,307.35 × 210,009.70
  4. Step 4: Simplify right side
    328,204.90x = 103,389,318,881.30
  5. Step 5: Solve for x
    x = 103,389,318,881.30/328,204.90
  6. Step 6: Final answer
    x = 315,014.55

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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.