Home / 369,125.80-553,343.10-289,119.40

Finding the Fourth Proportional to 369,125.80, 553,343.10 and 289,119.40

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Solution

The fourth proportional to 369,125.80, 553,343.10 and 289,119.40 is: 433,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,125.80 : 553,343.10 = 289,119.40 : x
  2. Step 2: Convert to fraction form
    369,125.80/553,343.10 = 289,119.40/x
  3. Step 3: Cross multiply
    369,125.80x = 553,343.10 × 289,119.40
  4. Step 4: Simplify right side
    369,125.80x = 159,982,225,066.14
  5. Step 5: Solve for x
    x = 159,982,225,066.14/369,125.80
  6. Step 6: Final answer
    x = 433,408.41

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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.