Home / 281,746.83-388,688.45-186,386.34

Finding the Fourth Proportional to 281,746.83, 388,688.45 and 186,386.34

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Solution

The fourth proportional to 281,746.83, 388,688.45 and 186,386.34 is: 257,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,746.83 : 388,688.45 = 186,386.34 : x
  2. Step 2: Convert to fraction form
    281,746.83/388,688.45 = 186,386.34/x
  3. Step 3: Cross multiply
    281,746.83x = 388,688.45 × 186,386.34
  4. Step 4: Simplify right side
    281,746.83x = 72,446,216,663.84
  5. Step 5: Solve for x
    x = 72,446,216,663.84/281,746.83
  6. Step 6: Final answer
    x = 257,132.32

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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.