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Finding the Fourth Proportional to 170,075.40, 255,113.10 and 146,455.80

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Solution

The fourth proportional to 170,075.40, 255,113.10 and 146,455.80 is: 219,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,075.40 : 255,113.10 = 146,455.80 : x
  2. Step 2: Convert to fraction form
    170,075.40/255,113.10 = 146,455.80/x
  3. Step 3: Cross multiply
    170,075.40x = 255,113.10 × 146,455.80
  4. Step 4: Simplify right side
    170,075.40x = 37,362,793,150.98
  5. Step 5: Solve for x
    x = 37,362,793,150.98/170,075.40
  6. Step 6: Final answer
    x = 219,683.70

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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.