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Finding the Fourth Proportional to 369,034.80, 553,206.60 and 289,028.40

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Solution

The fourth proportional to 369,034.80, 553,206.60 and 289,028.40 is: 433,271.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,034.80 : 553,206.60 = 289,028.40 : x
  2. Step 2: Convert to fraction form
    369,034.80/553,206.60 = 289,028.40/x
  3. Step 3: Cross multiply
    369,034.80x = 553,206.60 × 289,028.40
  4. Step 4: Simplify right side
    369,034.80x = 159,892,418,467.44
  5. Step 5: Solve for x
    x = 159,892,418,467.44/369,034.80
  6. Step 6: Final answer
    x = 433,271.93

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1.5x scale

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.