Home / 287,746.04-397,100.94-160,444.28

Finding the Fourth Proportional to 287,746.04, 397,100.94 and 160,444.28

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Solution

The fourth proportional to 287,746.04, 397,100.94 and 160,444.28 is: 221,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,746.04 : 397,100.94 = 160,444.28 : x
  2. Step 2: Convert to fraction form
    287,746.04/397,100.94 = 160,444.28/x
  3. Step 3: Cross multiply
    287,746.04x = 397,100.94 × 160,444.28
  4. Step 4: Simplify right side
    287,746.04x = 63,712,574,405.62
  5. Step 5: Solve for x
    x = 63,712,574,405.62/287,746.04
  6. Step 6: Final answer
    x = 221,419.47

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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.