Home / 287,242.53-430,928.40-87,583.10

Finding the Fourth Proportional to 287,242.53, 430,928.40 and 87,583.10

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Solution

The fourth proportional to 287,242.53, 430,928.40 and 87,583.10 is: 131,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,242.53 : 430,928.40 = 87,583.10 : x
  2. Step 2: Convert to fraction form
    287,242.53/430,928.40 = 87,583.10/x
  3. Step 3: Cross multiply
    287,242.53x = 430,928.40 × 87,583.10
  4. Step 4: Simplify right side
    287,242.53x = 37,742,042,666.96
  5. Step 5: Solve for x
    x = 37,742,042,666.96/287,242.53
  6. Step 6: Final answer
    x = 131,394.34

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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.