Home / 369,212.40-553,789.80-144,529.20

Finding the Fourth Proportional to 369,212.40, 553,789.80 and 144,529.20

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Solution

The fourth proportional to 369,212.40, 553,789.80 and 144,529.20 is: 216,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,212.40 : 553,789.80 = 144,529.20 : x
  2. Step 2: Convert to fraction form
    369,212.40/553,789.80 = 144,529.20/x
  3. Step 3: Cross multiply
    369,212.40x = 553,789.80 × 144,529.20
  4. Step 4: Simplify right side
    369,212.40x = 80,038,796,762.16
  5. Step 5: Solve for x
    x = 80,038,796,762.16/369,212.40
  6. Step 6: Final answer
    x = 216,782.53

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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.