Home / 311,981.64-430,533.36-168,741.34

Finding the Fourth Proportional to 311,981.64, 430,533.36 and 168,741.34

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Solution

The fourth proportional to 311,981.64, 430,533.36 and 168,741.34 is: 232,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,981.64 : 430,533.36 = 168,741.34 : x
  2. Step 2: Convert to fraction form
    311,981.64/430,533.36 = 168,741.34/x
  3. Step 3: Cross multiply
    311,981.64x = 430,533.36 × 168,741.34
  4. Step 4: Simplify right side
    311,981.64x = 72,648,776,081.10
  5. Step 5: Solve for x
    x = 72,648,776,081.10/311,981.64
  6. Step 6: Final answer
    x = 232,862.34

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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.