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Finding the Fourth Proportional to 292,263.40, 438,438.90 and 123,783.40

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Solution

The fourth proportional to 292,263.40, 438,438.90 and 123,783.40 is: 185,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,263.40 : 438,438.90 = 123,783.40 : x
  2. Step 2: Convert to fraction form
    292,263.40/438,438.90 = 123,783.40/x
  3. Step 3: Cross multiply
    292,263.40x = 438,438.90 × 123,783.40
  4. Step 4: Simplify right side
    292,263.40x = 54,271,457,734.26
  5. Step 5: Solve for x
    x = 54,271,457,734.26/292,263.40
  6. Step 6: Final answer
    x = 185,693.65

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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.