Home / 286,870.14-430,363.52-99,896.22

Finding the Fourth Proportional to 286,870.14, 430,363.52 and 99,896.22

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Solution

The fourth proportional to 286,870.14, 430,363.52 and 99,896.22 is: 149,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,870.14 : 430,363.52 = 99,896.22 : x
  2. Step 2: Convert to fraction form
    286,870.14/430,363.52 = 99,896.22/x
  3. Step 3: Cross multiply
    286,870.14x = 430,363.52 × 99,896.22
  4. Step 4: Simplify right side
    286,870.14x = 42,991,688,873.89
  5. Step 5: Solve for x
    x = 42,991,688,873.89/286,870.14
  6. Step 6: Final answer
    x = 149,864.64

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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.