Home / 328,110.59-492,206.93-128,405.18

Finding the Fourth Proportional to 328,110.59, 492,206.93 and 128,405.18

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Solution

The fourth proportional to 328,110.59, 492,206.93 and 128,405.18 is: 192,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,110.59 : 492,206.93 = 128,405.18 : x
  2. Step 2: Convert to fraction form
    328,110.59/492,206.93 = 128,405.18/x
  3. Step 3: Cross multiply
    328,110.59x = 492,206.93 × 128,405.18
  4. Step 4: Simplify right side
    328,110.59x = 63,201,918,801.87
  5. Step 5: Solve for x
    x = 63,201,918,801.87/328,110.59
  6. Step 6: Final answer
    x = 192,623.83

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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.