Home / 315,075.20-472,612.80-173,357.60

Finding the Fourth Proportional to 315,075.20, 472,612.80 and 173,357.60

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Solution

The fourth proportional to 315,075.20, 472,612.80 and 173,357.60 is: 260,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,075.20 : 472,612.80 = 173,357.60 : x
  2. Step 2: Convert to fraction form
    315,075.20/472,612.80 = 173,357.60/x
  3. Step 3: Cross multiply
    315,075.20x = 472,612.80 × 173,357.60
  4. Step 4: Simplify right side
    315,075.20x = 81,931,020,737.28
  5. Step 5: Solve for x
    x = 81,931,020,737.28/315,075.20
  6. Step 6: Final answer
    x = 260,036.40

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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.