Home / 278,415.04-384,213.28-165,260.48

Finding the Fourth Proportional to 278,415.04, 384,213.28 and 165,260.48

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Solution

The fourth proportional to 278,415.04, 384,213.28 and 165,260.48 is: 228,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,415.04 : 384,213.28 = 165,260.48 : x
  2. Step 2: Convert to fraction form
    278,415.04/384,213.28 = 165,260.48/x
  3. Step 3: Cross multiply
    278,415.04x = 384,213.28 × 165,260.48
  4. Step 4: Simplify right side
    278,415.04x = 63,495,271,075.17
  5. Step 5: Solve for x
    x = 63,495,271,075.17/278,415.04
  6. Step 6: Final answer
    x = 228,059.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.