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Finding the Fourth Proportional to 288,615.84, 430,810.25 and 254,528.04

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Solution

The fourth proportional to 288,615.84, 430,810.25 and 254,528.04 is: 379,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,615.84 : 430,810.25 = 254,528.04 : x
  2. Step 2: Convert to fraction form
    288,615.84/430,810.25 = 254,528.04/x
  3. Step 3: Cross multiply
    288,615.84x = 430,810.25 × 254,528.04
  4. Step 4: Simplify right side
    288,615.84x = 109,653,287,271.77
  5. Step 5: Solve for x
    x = 109,653,287,271.77/288,615.84
  6. Step 6: Final answer
    x = 379,928.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.