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Finding the Fourth Proportional to 260,510.04, 390,710.38 and 73,477.80

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Solution

The fourth proportional to 260,510.04, 390,710.38 and 73,477.80 is: 110,201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,510.04 : 390,710.38 = 73,477.80 : x
  2. Step 2: Convert to fraction form
    260,510.04/390,710.38 = 73,477.80/x
  3. Step 3: Cross multiply
    260,510.04x = 390,710.38 × 73,477.80
  4. Step 4: Simplify right side
    260,510.04x = 28,708,539,159.56
  5. Step 5: Solve for x
    x = 28,708,539,159.56/260,510.04
  6. Step 6: Final answer
    x = 110,201.28

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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.