Home / 287,242.65-430,928.59-87,583.22

Finding the Fourth Proportional to 287,242.65, 430,928.59 and 87,583.22

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Solution

The fourth proportional to 287,242.65, 430,928.59 and 87,583.22 is: 131,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,242.65 : 430,928.59 = 87,583.22 : x
  2. Step 2: Convert to fraction form
    287,242.65/430,928.59 = 87,583.22/x
  3. Step 3: Cross multiply
    287,242.65x = 430,928.59 × 87,583.22
  4. Step 4: Simplify right side
    287,242.65x = 37,742,113,064.34
  5. Step 5: Solve for x
    x = 37,742,113,064.34/287,242.65
  6. Step 6: Final answer
    x = 131,394.53

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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.