Home / 238,509.48-329,071.23-142,981.32

Finding the Fourth Proportional to 238,509.48, 329,071.23 and 142,981.32

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Solution

The fourth proportional to 238,509.48, 329,071.23 and 142,981.32 is: 197,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,509.48 : 329,071.23 = 142,981.32 : x
  2. Step 2: Convert to fraction form
    238,509.48/329,071.23 = 142,981.32/x
  3. Step 3: Cross multiply
    238,509.48x = 329,071.23 × 142,981.32
  4. Step 4: Simplify right side
    238,509.48x = 47,051,038,839.42
  5. Step 5: Solve for x
    x = 47,051,038,839.42/238,509.48
  6. Step 6: Final answer
    x = 197,271.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.