Home / 287,258.23-430,484-227,021.87

Finding the Fourth Proportional to 287,258.23, 430,484 and 227,021.87

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Solution

The fourth proportional to 287,258.23, 430,484 and 227,021.87 is: 340,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,258.23 : 430,484 = 227,021.87 : x
  2. Step 2: Convert to fraction form
    287,258.23/430,484 = 227,021.87/x
  3. Step 3: Cross multiply
    287,258.23x = 430,484 × 227,021.87
  4. Step 4: Simplify right side
    287,258.23x = 97,729,282,685.08
  5. Step 5: Solve for x
    x = 97,729,282,685.08/287,258.23
  6. Step 6: Final answer
    x = 340,214.04

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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.