Home / 328,130.40-492,206.19-103,492.96

Finding the Fourth Proportional to 328,130.40, 492,206.19 and 103,492.96

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Solution

The fourth proportional to 328,130.40, 492,206.19 and 103,492.96 is: 155,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,130.40 : 492,206.19 = 103,492.96 : x
  2. Step 2: Convert to fraction form
    328,130.40/492,206.19 = 103,492.96/x
  3. Step 3: Cross multiply
    328,130.40x = 492,206.19 × 103,492.96
  4. Step 4: Simplify right side
    328,130.40x = 50,939,875,533.42
  5. Step 5: Solve for x
    x = 50,939,875,533.42/328,130.40
  6. Step 6: Final answer
    x = 155,242.78

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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.