Home / 409,631.60-614,533.80-172,852.40

Finding the Fourth Proportional to 409,631.60, 614,533.80 and 172,852.40

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Solution

The fourth proportional to 409,631.60, 614,533.80 and 172,852.40 is: 259,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,631.60 : 614,533.80 = 172,852.40 : x
  2. Step 2: Convert to fraction form
    409,631.60/614,533.80 = 172,852.40/x
  3. Step 3: Cross multiply
    409,631.60x = 614,533.80 × 172,852.40
  4. Step 4: Simplify right side
    409,631.60x = 106,223,642,211.12
  5. Step 5: Solve for x
    x = 106,223,642,211.12/409,631.60
  6. Step 6: Final answer
    x = 259,315.06

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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.