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Finding the Fourth Proportional to 286,999.30, 429,980.55 and 245,527.30

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Solution

The fourth proportional to 286,999.30, 429,980.55 and 245,527.30 is: 367,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,999.30 : 429,980.55 = 245,527.30 : x
  2. Step 2: Convert to fraction form
    286,999.30/429,980.55 = 245,527.30/x
  3. Step 3: Cross multiply
    286,999.30x = 429,980.55 × 245,527.30
  4. Step 4: Simplify right side
    286,999.30x = 105,571,963,494.02
  5. Step 5: Solve for x
    x = 105,571,963,494.02/286,999.30
  6. Step 6: Final answer
    x = 367,847.46

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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.