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Finding the Fourth Proportional to 282,421.60, 423,632.40 and 95,430.40

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Solution

The fourth proportional to 282,421.60, 423,632.40 and 95,430.40 is: 143,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,421.60 : 423,632.40 = 95,430.40 : x
  2. Step 2: Convert to fraction form
    282,421.60/423,632.40 = 95,430.40/x
  3. Step 3: Cross multiply
    282,421.60x = 423,632.40 × 95,430.40
  4. Step 4: Simplify right side
    282,421.60x = 40,427,409,384.96
  5. Step 5: Solve for x
    x = 40,427,409,384.96/282,421.60
  6. Step 6: Final answer
    x = 143,145.60

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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.