Home / 289,068.36-398,901.39-160,011.66

Finding the Fourth Proportional to 289,068.36, 398,901.39 and 160,011.66

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Solution

The fourth proportional to 289,068.36, 398,901.39 and 160,011.66 is: 220,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,068.36 : 398,901.39 = 160,011.66 : x
  2. Step 2: Convert to fraction form
    289,068.36/398,901.39 = 160,011.66/x
  3. Step 3: Cross multiply
    289,068.36x = 398,901.39 × 160,011.66
  4. Step 4: Simplify right side
    289,068.36x = 63,828,874,486.04
  5. Step 5: Solve for x
    x = 63,828,874,486.04/289,068.36
  6. Step 6: Final answer
    x = 220,808.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.