Home / 286,705.18-430,145.28-146,562.22

Finding the Fourth Proportional to 286,705.18, 430,145.28 and 146,562.22

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Solution

The fourth proportional to 286,705.18, 430,145.28 and 146,562.22 is: 219,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,705.18 : 430,145.28 = 146,562.22 : x
  2. Step 2: Convert to fraction form
    286,705.18/430,145.28 = 146,562.22/x
  3. Step 3: Cross multiply
    286,705.18x = 430,145.28 × 146,562.22
  4. Step 4: Simplify right side
    286,705.18x = 63,043,047,159.32
  5. Step 5: Solve for x
    x = 63,043,047,159.32/286,705.18
  6. Step 6: Final answer
    x = 219,888.06

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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.