Home / 369,020.40-553,530.60-211,264.80

Finding the Fourth Proportional to 369,020.40, 553,530.60 and 211,264.80

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Solution

The fourth proportional to 369,020.40, 553,530.60 and 211,264.80 is: 316,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,020.40 : 553,530.60 = 211,264.80 : x
  2. Step 2: Convert to fraction form
    369,020.40/553,530.60 = 211,264.80/x
  3. Step 3: Cross multiply
    369,020.40x = 553,530.60 × 211,264.80
  4. Step 4: Simplify right side
    369,020.40x = 116,941,531,502.88
  5. Step 5: Solve for x
    x = 116,941,531,502.88/369,020.40
  6. Step 6: Final answer
    x = 316,897.20

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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.