Home / 351,970.04-528,031.56-115,303.88

Finding the Fourth Proportional to 351,970.04, 528,031.56 and 115,303.88

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Solution

The fourth proportional to 351,970.04, 528,031.56 and 115,303.88 is: 172,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,970.04 : 528,031.56 = 115,303.88 : x
  2. Step 2: Convert to fraction form
    351,970.04/528,031.56 = 115,303.88/x
  3. Step 3: Cross multiply
    351,970.04x = 528,031.56 × 115,303.88
  4. Step 4: Simplify right side
    351,970.04x = 60,884,087,630.45
  5. Step 5: Solve for x
    x = 60,884,087,630.45/351,970.04
  6. Step 6: Final answer
    x = 172,980.88

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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.