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Finding the Fourth Proportional to 357,075.22, 492,150.19 and 340,258.56

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Solution

The fourth proportional to 357,075.22, 492,150.19 and 340,258.56 is: 468,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,075.22 : 492,150.19 = 340,258.56 : x
  2. Step 2: Convert to fraction form
    357,075.22/492,150.19 = 340,258.56/x
  3. Step 3: Cross multiply
    357,075.22x = 492,150.19 × 340,258.56
  4. Step 4: Simplify right side
    357,075.22x = 167,458,314,953.13
  5. Step 5: Solve for x
    x = 167,458,314,953.13/357,075.22
  6. Step 6: Final answer
    x = 468,972.10

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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.