Home / 328,904.12-493,407.62-139,364.93

Finding the Fourth Proportional to 328,904.12, 493,407.62 and 139,364.93

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Solution

The fourth proportional to 328,904.12, 493,407.62 and 139,364.93 is: 209,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,904.12 : 493,407.62 = 139,364.93 : x
  2. Step 2: Convert to fraction form
    328,904.12/493,407.62 = 139,364.93/x
  3. Step 3: Cross multiply
    328,904.12x = 493,407.62 × 139,364.93
  4. Step 4: Simplify right side
    328,904.12x = 68,763,719,482.08
  5. Step 5: Solve for x
    x = 68,763,719,482.08/328,904.12
  6. Step 6: Final answer
    x = 209,069.19

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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.